html,
body {
    padding: 0;
    margin: 0;
    background-color: #f6f6f6;
}

a {
    color: inherit;
    text-decoration: none;
}

strong {
    font-weight: normal;
}

* {
    box-sizing: border-box;
}

.ovfl {
    overflow: hidden;
}

.ml10 {
    margin-left: 10px;
}

.mt10 {
    margin-top: 10px;
}